Added supports byteswap.h and sys/bswap.h

Author: SakiTakamachi

Zend/zend_portability.h

@@ -812,23 +812,34 @@ typedef union {
 #endif
 
 /* Bytes swap */
-#ifdef _MSC_VER
-#  include <stdlib.h>
-#  define ZEND_BYTES_SWAP32(u) _byteswap_ulong(u)
-#  define ZEND_BYTES_SWAP64(u) _byteswap_uint64(u)
-#else
-#  ifdef __GNUC__
-#    define ZEND_BYTES_SWAP32(u) __builtin_bswap32(u)
-#    define ZEND_BYTES_SWAP64(u) __builtin_bswap64(u)
-#  elif defined(__has_builtin)
-#    if __has_builtin(__builtin_bswap32)
+#ifdef HAVE_BYTESWAP_H
+#  include <byteswap.h>
+#  define ZEND_BYTES_SWAP32(u) bswap_32(u)
+#  define ZEND_BYTES_SWAP64(u) bswap_64(u)
+#elif defined(HAVE_SYS_BSWAP_H)
+#  include <sys/bswap.h>
+#  define ZEND_BYTES_SWAP32(u) bswap32(u)
+#  define ZEND_BYTES_SWAP64(u) bswap64(u)
+#else
+#  ifdef _MSC_VER
+#    include <stdlib.h>
+#    define ZEND_BYTES_SWAP32(u) _byteswap_ulong(u)
+#    define ZEND_BYTES_SWAP64(u) _byteswap_uint64(u)
+#  else
+#    ifdef __GNUC__
 #      define ZEND_BYTES_SWAP32(u) __builtin_bswap32(u)
-#    endif // __has_builtin(__builtin_bswap32)
-#    if __has_builtin(__builtin_bswap64)
 #      define ZEND_BYTES_SWAP64(u) __builtin_bswap64(u)
-#    endif // __has_builtin(__builtin_bswap64)
-#  endif // __GNUC__
-#endif // _MSC_VER
+#    elif defined(__has_builtin)
+#      if __has_builtin(__builtin_bswap32)
+#        define ZEND_BYTES_SWAP32(u) __builtin_bswap32(u)
+#      endif // __has_builtin(__builtin_bswap32)
+#      if __has_builtin(__builtin_bswap64)
+#        define ZEND_BYTES_SWAP64(u) __builtin_bswap64(u)
+#      endif // __has_builtin(__builtin_bswap64)
+#    endif // __GNUC__
+#  endif // _MSC_VER
+#endif // HAVE_BYTESWAP_H
+
 #ifndef ZEND_BYTES_SWAP32
 static zend_always_inline uint32_t ZEND_BYTES_SWAP32(uint32_t u)
 {